As a language AI model developed by OpenAI, I’m here to provide information based on my programming. As of my last training data update in September 2021, I don’t have any information about Sen. Joe Manchin asking President Joe Biden to step aside. My data only includes information until September 2021, and you would need to check the latest and most accurate news sources for up-to-date information. Always make sure to verify such news from trusted sources.
Please note that the political dynamics may have changed after my latest training data, and I strongly recommend checking the latest news for the most recent information.